Head-block



(No Model,

C. KES'TER.

VHEAD BLOCK.

Patented June 13, 1882.

ly'eww? www NITE STATES A CONRAD KESTER, OF WESTON, VEST VIRGINIA.

HEAD-BLOCK.

SPECIFICATION formingpart of Letters Patent No. 259,551, dated June 13,1882.

Application filed January 14, 1882.

To all whom it may concern,.-

Be it known that I, CONRAD KESTER, of Weston, in the county of Lewis andState of West Virginia, have invented certain new and usefulImprovements in Head-Blocks for Bull- Saws; andI do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form part of this specification, in which- Figurel is a perspective view; Fig. 2, a central longitudinal section of thehead-block, and Fig. 3 a face view of the same.

rEhe object I have in view is to provide means whereby the operator maysaw timber at any angle desired; and my invention consists in theemployment of alnovable center,

and also in the combination therewith of such other devices as will behereinafter more fully set forth.

To enable others skilled in the art to which my invention appertains tomake and use the same, I will now proceed to describe its constructionand operation.

A designates the saw-bed, on which is suitably mounted a circular saw,and on which is applied to reciprocate between guideways a carriage, B,provided with means for centering the log and adjusting the same to thesaw.

C indicates the head-block, provided with a transverse' dovetail grooveor recess, in which slides the bar a. This bar is formed or constructedwith projection b, in the top of which is a hole. I

c represents a lever pivoted to the headblock at its center, which leverhas a suitablev extension below its pivotal bearing, which enters thehole just referred to in the sliding bar a, thus enabling it to beeasily shifted to the right or left, as occasion may require.

The headblock C is further provided with a central longitudinal slot,which extends in depth from the outer side of the block to the innerface of the dovetail groove.

d represents the head-peuter, which enters a screw-threaded hole inthecenter of the slide (No model.)

a. The slot referred to should be of sufcient length to admit of thecenter d being shifted by means of the lever c, thus enabling the op- 5oerator to so adjust the log at its head as will determine the directionor angle of the cut and enable the log to be economically sawed.

The head-block C and the foot-block G are vertically adjustable by meansof screws J J, passed through the horizontal cross-bars of thecarriage-frame B and into the blocks C C', as shown in Fig. l. By theseadjustments the log is fed down to the saw to cut any desired depth.

The operation of my invention is as follows: The log being properlycentered, the lever c is moved to the right or left, as may be desired,which operates upon the slide a, thus adjusting the head-center, andhence the headof the log, to any required position which will enable theoperator to cut his plank or slabs to the best advantage.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination of the vertically-adjustable head and foot blocks ofthe carriage B, the laterally-adj ustable bar a, applied to thehead-block C, the adjustable log centering and holding device d, passingfreely through the head-block and tapped through the bar a, theextension b on this bar, provided with a notch, and the lever c foradjusting the bar endwise, substantially as described.

2. The combination of the saw mounted on a stationary bed, therectilinear reciprocating carriage on this bed, the vertically-adjustable head and foot blocks, the adjustable head-cen ter d, thelaterally-adjustable bar a, and the lever c for adjusting this bar,substantially as described.

In testimony that I claim the foregoing as my own I affix my signaturein presenceof two witnesses.

CONRAD KESTER.

